下列属于筛查性测试的是（）
A.CessellScale-R
B.WPPSI
C.WISC-R
D.DDST
E.NBNA
参考答案：D
_______ yesterday, our school organized a successful picnic in the countryside, with all the students and teachers taking part in.
A．As a fine day
B．It was a fine day
C．It being a fine day
D．For it was a fine day
（）
A．
B．
C．
D．
（）
